2221230265 has 16 divisors (see below), whose sum is σ = 2739838608. Its totient is φ = 1728004096.

The previous prime is 2221230247. The next prime is 2221230269. The reversal of 2221230265 is 5620321222.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 261662976 + 1959567289 = 16176^2 + 44267^2 .

It is a cyclic number.

It is not a de Polignac number, because 2221230265 - 2¹⁷ = 2221099193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2221230269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7144 + ... + 67033.

It is an arithmetic number, because the mean of its divisors is an integer number (171239913).

Almost surely, 2^2221230265 is an apocalyptic number.

It is an amenable number.

2221230265 is a deficient number, since it is larger than the sum of its proper divisors (518608343).

2221230265 is a wasteful number, since it uses less digits than its factorization.

2221230265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74348.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 2221230265 is about 47129.9296095379. The cubic root of 2221230265 is about 1304.7616824298.

Adding to 2221230265 its reverse (5620321222), we get a palindrome (7841551487).

The spelling of 2221230265 in words is "two billion, two hundred twenty-one million, two hundred thirty thousand, two hundred sixty-five".